Number | Date | Country | Kind |
---|---|---|---|
9126296 | Dec 1991 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3640885 | Rhees | Feb 1972 | |
3883640 | Smart | May 1975 | |
3933672 | Bartolotta | Jan 1976 | |
3950275 | Toyoda | Apr 1976 | |
3977988 | Tokiwa | Aug 1976 | |
3979318 | Tokiwa | Sep 1976 | |
4025609 | Matsunaga | May 1977 | |
4075116 | Mesaros | Feb 1978 | |
4078099 | Mazzola | Mar 1978 | |
4117087 | Dillenburg | Sep 1978 | |
4135010 | Klebe | Jan 9179 | |
4208295 | Sai | Jun 1980 | |
4260508 | Maddox | Apr 1981 | |
4321301 | Brichard | Mar 1982 | |
4381247 | Nakagawa | Apr 1983 | |
4421669 | Brichard | Dec 1983 | |
4526698 | Kuroda | Jul 1985 | |
4849198 | Ruhs | Jul 1989 | |
5194176 | Copenhafer | Mar 1993 | |
5200236 | Lang | Apr 1993 |
Number | Date | Country |
---|---|---|
0414463 | Feb 1991 | EPX |
0459625 | Dec 1991 | EPX |
2477174 | Sep 1981 | FRX |
50-92896 | Jul 1975 | JPX |
1361708 | Jul 1974 | GBX |
1538893 | Jan 1979 | GBX |
1579513 | Nov 1980 | GBX |
2123044 | Jan 1984 | GBX |
Entry |
---|
Patent Abstracts of Japan, vol. 007, No. 167 (C-177) Jul. 22, 1983 and JP-A-58 074 508 (Mitsubishi Gas Kagaku KK) May 6, 1983. |